Title:
回転電機の製造方法
Document Type and Number:
Japanese Patent JP7048344
Kind Code:
B2
Abstract:
This rotary electrical machine is provided with: a stator having a stator core, stator slots arranged in the circumferential direction of the stator core, and a stator winding disposed in the stator slots; and a rotor having a rotor core, rotor slots arranged in the circumferential direction of the rotor core, rotor bars disposed in the rotor slots, and rotor slits disposed on the outer circumferential side of the rotor core so as to be contiguous with the rotor slots. The pole number falls within a predetermined pole number range. The height of the stator slots at respective openings thereof, the width of the stator slots at respective openings thereof, and the width of the rotor slits, are determined such that the amount of change in the permeance ratio of the rotor slits corresponding to a change in the pole number within the predetermined pole number range becomes smaller than the slot permeance ratio at the openings of the stator slots. The stator is configured to have a cross-section shape that remains substantially the same across the pole number range.
More Like This:
| JP2020145837 | STATOR MANUFACTURING METHOD |
| WO/2011/118264 | LAMINATED CORE PUNCHING DEVICE |
| JP2022180833 | ROTOR MANUFACTURING DEVICE |
Inventors:
Kazuo Nishihama
Abe Atsushi
Amaike
Yuya Hirata
Abe Atsushi
Amaike
Yuya Hirata
Application Number:
JP2018027096A
Publication Date:
April 05, 2022
Filing Date:
February 19, 2018
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
H02K15/02; H02K17/16
Domestic Patent References:
| JP2014103824A | ||||
| JP2010035336A |
Foreign References:
| WO2017141334A1 | ||||
| US20150260794 |
Attorney, Agent or Firm:
Aoritsu patent business corporation